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(11) | EP 1 284 417 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Multi-component analyzing apparatus |
| (57) A multi-component analyzing apparatus (1) for measuring a concentration ratio of
gas components of fron gas is provided, while the fron gas is constituted by several
sorts of single gas components of fron gas, and the fron gas is employed as a measuring
subject sample (S) made by mixing a plurality of measuring subject components with
each other, whose sort and quantity are limited. The multi-component analyzing apparatus
(1) is comprised of: a measuring cell (2) for conducting thereinto a measuring subject
sample (S); an infrared light source (3) for irradiating infrared rays to the measuring
cell; a plurality of bandpass filters (9a-9i) for transmitting therethrough infrared
rays having wavelengths which are fitted to infrared absorption spectra of the respective
measuring subject components among infrared rays which have transmitted the measuring
cell; a plurality of detectors (4a-4i) for measuring intensity of infrared rays which
have transmitted the bandpass filters; a calculating process unit (6) for measuring
concentrations of the respective measuring subject components in such a manner that
the calculating process unit executes a multivariate analysis by employing the intensity
of the infrared rays measured by the respective detectors; and a display unit (7)
for displaying thereon a measurement result. |